# Kart Chassis Setup vs RFEDA

The clearest difference is price: RFEDA at Free against Kart Chassis Setup's $7.99. RFEDA also leads on iOS requirement (14.0 vs 17.0). Kart Chassis Setup's advantage is ads (none vs shown). On update cadence, in-app purchases and device support there is nothing between them.

RFEDA is free to download; Kart Chassis Setup costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Kart Chassis Setup ships an update every 8 months, RFEDA every 16 months. The most recent releases landed on September 21, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Kart Chassis Setup | RFEDA |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kart-chassis-setup/id885032175/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 8 months** | Every 16 months |
| Monetization | Paid | — |
| Size | 9 MB | 47 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [ISEnet](https://appshunter.io/developer/811255764) | [Real Federación Española de Automovilismo](https://appshunter.io/developer/1419993055) |

## What reviewers say

### Kart Chassis Setup

[App page](https://appshunter.io/ios/app/kart-chassis-setup/id885032175)

Analyze kart chassis data like tire pressures and temperatures to receive setup recommendations. This app helps both novice and experienced drivers understand and resolve chassis setup issues with detailed explanations and visual aids.

**Highlights:** Analyze tire pressures and temperatures, Receive chassis setup recommendations, Detailed explanations for adjustments, Supports sprint karts and all classes, Useful for novice and experienced drivers, Adjustable measure units

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### RFEDA

[App page](https://appshunter.io/ios/app/rfeda/id1631813833)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kart Chassis Setup free?

Kart Chassis Setup costs $7.99, with no in-app purchases.

### Is RFEDA free?

RFEDA is free to download, with no in-app purchases.

### Do Kart Chassis Setup or RFEDA have ads?

RFEDA shows ads; Kart Chassis Setup does not.

### Which is updated more often, Kart Chassis Setup or RFEDA?

Kart Chassis Setup ships an update every 8 months, and RFEDA every 16 months. Most recently, Kart Chassis Setup was updated on September 21, 2026 and RFEDA on May 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*